Unlock instant, AI-driven research and patent intelligence for your innovation.

Precursor of a dual-waverider air-breathing hypervehicle and its design method

A waverider and aircraft technology, applied in the field of hypersonic aircraft design, can solve problems such as the difficulty of aircraft precursor design, and achieve the effect of improving utilization

Active Publication Date: 2015-11-11
广东空天科技研究院(南沙)
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These coupled design requirements and performance index requirements have brought great difficulty to the design of the aircraft precursor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Precursor of a dual-waverider air-breathing hypervehicle and its design method
  • Precursor of a dual-waverider air-breathing hypervehicle and its design method
  • Precursor of a dual-waverider air-breathing hypervehicle and its design method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] Example 1: A design example suitable for the air intake layout of the nose, such as figure 2 shown.

example 2

[0034] Example 2: Design example suitable for air intake layout on both sides, such as image 3 shown.

example 3

[0035] Example 3: Design example suitable for flank air intake layout, such as Figure 4 shown.

[0036] actual effect test

[0037] The performance of the designed precursor of the present invention is examined below by an example design and corresponding numerical analysis. An actual precursor shape designed based on the aforementioned design method is as follows: Figure 5 As shown, its three views and outline dimensions are as follows Image 6 shown.

[0038] Using numerical simulation technology, the calculated aerodynamic performance parameters are shown in Table 1. It can be seen from the calculation results that due to the use of the dual waverider paired precursors designed in the present invention, a high incoming flow capture amount can be obtained, which meets the flow design requirements. In addition, due to the high lift-to-drag ratio of the waverider, the double waverider paired precursor also has a high lift-to-drag ratio.

[0039] Table 1 Performance par...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a double waverider splicing air suction type hypersonic aircraft forebody and a design method thereof. The double waverider splicing air suction type hypersonic aircraft forebody comprises a left waverider, a right waverider, a splicing surface and an upper wall surface, wherein the left waverider and the right waverider are symmetrically arranged at preset intervals; the splicing surface is formed between the lower front edge lines of the left waverider and the right waverider; the splicing surface is used for seaming the gap between the lower front edge lines of the left waverider and the right waverider and serves as a lifting surface of the forebody to provide addition lifting force; the upper wall surface is formed between the front edge line of the splicing surface and the upper front edge lines of the left waverider and the right waverider; and the upper wall surface is used for seaming the gap between the upper front edge lines of the left waverider and the right waverider. The double waverider structure is formed, and the splicing surface and the upper wall surface for reasonably seaming the gap between the lower front edge lines of the left waverider and the right waverider and capable of improving the pneumatic / volume comprehensive performance of the aircraft are formed between the double waveriders, so that utilization of abdominal space of the aircraft can be improved well.

Description

technical field [0001] The invention relates to the design of a hypersonic aircraft powered by an air-breathing scramjet, in particular to the design of an aircraft precursor and its aerodynamic shape with different aerodynamic layout requirements. Background technique [0002] A hypersonic vehicle is an aircraft that travels in the atmosphere at more than five times the speed of sound. It has broad application prospects and is also one of the commanding heights, difficulties and focuses of international aerospace competition. Judging from the current situation at home and abroad, the research related to the super aircraft powered by air-breathing scramjet has become the main research direction in this field (such as the X-43A, X-51A in the United States, etc.). When the aircraft flies at hypersonic speed, the wave drag and friction drag increase sharply, which leads to the increase of aerodynamic drag and the decrease of engine thrust margin, resulting in serious thrust-dr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B64C21/00
Inventor 崔凯胡守超李广利屈志朋
Owner 广东空天科技研究院(南沙)